Toyota Tundra (2015 year). Manual — part 1939
Enter the following menu items: Powertrain / Engine and ECT / Data List / Intake Air.
3.
Clear DTCs (even if no DTCs are stored, perform the clear DTC operation).
4.
Turn the ignition switch off and wait for at least 30 seconds.
5.
Turn the ignition switch to ON and turn the Techstream on [A].
6.
Enter the following menu items: Powertrain / Engine and ECT / Utility / Evaporative System Check
/ Automatic Mode.
7.
After the Evaporative System Check is completed, check for All Readiness by entering the following
menus: Powertrain / Engine and ECT / Utility / All readiness.
8.
Input the DTC: P0451, P0452 or P0453.
9.
Check the DTC judgment result [B].
TESTER
DISPLAY
DESCRIPTION
NORMAL
DTC judgment completed
System normal
ABNORMAL
DTC judgment completed
System abnormal
INCOMPLETE
DTC judgment not completed
Perform driving pattern after confirming DTC enabling conditions
N/A
Unable to perform DTC judgment
HINT:
If the judgment result shows ABNORMAL, the system has a malfunction.
10.
If the test result is INCOMPLETE or N/A and no pending DTC is output, perform a universal trip and
check for permanent DTCs
.
HINT:
If a permanent DTC is output, the system is malfunctioning.
If no permanent DTC is output, the system is normal.
11.
WIRING DIAGRAM
3UR-FE ENGINE CONTROL SYSTEM: SFI SYSTEM: P0451-P0453;...
INSPECTION PROCEDURE
NOTICE:
When a vehicle is brought into the workshop, leave it as it is. Do not change the vehicle condition. For
example, do not tighten the fuel cap.
Do not disassemble the canister pump module.
The Techstream is required to conduct the following diagnostic troubleshooting procedure.
PROCEDURE
1.
CONFIRM DTC AND EVAP PRESSURE
(a) Connect the Techstream to the DLC3.
(b) Turn the ignition switch to ON (do not start the engine).
(c) Turn the Techstream on.
3UR-FE ENGINE CONTROL SYSTEM: SFI SYSTEM: P0451-P0453;...
A
(d) Enter the following menus: Powertrain / Engine and ECT / Trouble Codes.
(e) Read DTCs.
(f) Enter the following menus: Powertrain / Engine and ECT / Data List / EVAP / Vapor Pressure
Pump.
(g) Read the EVAP (Evaporative Emission) pressure displayed on the Techstream.
Result
DISPLAY
(DTC
OUTPUT)
TEST RESULT
SUSPECTED TROUBLE AREA
PROCEED
TO
P0451
-
Canister pressure sensor
C
P0452
Less than 42.11009 kPa-a
(315.86779 mmHg-a)
Wire harness/connector (ECM -
Canister pressure sensor)
Canister pressure sensor
Short in ECM circuit
A
P0453
More than 123.76147 kPa-a
(928.33489 mmHg-a)
Wire harness/connector (ECM -
Canister pressure sensor)
Canister pressure sensor
Open in ECM circuit
B
B
GO TO STEP 4
C
GO TO EVAP SYSTEM
2.
CHECK HARNESS AND CONNECTOR (CANISTER PUMP MODULE - ECM)
(a) Turn the ignition switch off.
(b) Disconnect the D74 ECM connector.
(c) Measure the resistance according to the value(s) in the table below.
Result
TESTER
CONNECTION
CONDITION
SPECIFIED
CONDITION
SUSPECTED TROUBLE AREA
PROCEED
TO
D74-121 (PPMP) -
Body ground
Always
10 Ω or less
Wire harness/connector (ECM -
Canister pressure sensor)
Short in canister pressure sensor
circuit
A
3UR-FE ENGINE CONTROL SYSTEM: SFI SYSTEM: P0451-P0453;...
A
TESTER
CONNECTION
CONDITION
SPECIFIED
CONDITION
SUSPECTED TROUBLE AREA
PROCEED
TO
D74-121 (PPMP) -
Body ground
Always
10 kΩ or more
Wire harness/connector (ECM -
Canister pressure sensor)
Short in ECM circuit
B
B
GO TO STEP 8
3.
CHECK HARNESS AND CONNECTOR (CANISTER PUMP MODULE - ECM)
(a) Disconnect the R12 canister pump module connector.
(b) Disconnect the D74 ECM connector.
(c) Measure the resistance according to the value(s) in the table below.
Result
TESTER CONNECTION CONDITION
SPECIFIED
CONDITION
SUSPECTED TROUBLE AREA
PROCEED
TO
D74-121 (PPMP) -
Body ground
Always
10 kΩ or more
Short in canister pressure sensor circuit
A*1
B*2
D74-121 (PPMP) -
Body ground
Always
10 Ω or less
Short in wire harness/connector (ECM -
Canister pressure sensor)
C
HINT:
*1: for 100 L (26.4 US gal) Fuel Tank
*2: for 144 L (38 US gal) Fuel Tank
A
GO TO STEP 5
B
GO TO STEP 6
C
GO TO STEP 7
4.
CHECK HARNESS AND CONNECTOR (CANISTER PUMP MODULE - ECM)
(a) Disconnect the R12 canister pump module connector.
(b) Measure the resistance according to the value(s) in the table below.
Standard resistance:
3UR-FE ENGINE CONTROL SYSTEM: SFI SYSTEM: P0451-P0453;...
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